Transcribe chemical engineering review lectures and follow every solution step again.
A 4.5-hour Chemical Engineering board exam review lecture is transcribed in about 9 minutes, with chapters per topic and the given values, units and constants the lecturer read out listed by timestamp. The first 20 minutes are free, and the $6 pack of 500 minutes covers that lecture with 230 minutes left.
For chemical engineering reviewees
Most of a ChE review lecture is the lecturer talking through a solution. The transcript keeps every spoken step you missed on the board.
The principles before the problems
The brief states what the lecture taught and the takeaways repeated between problems, so you see the principle behind a set of solutions before you redo them.
Given values and units, collected
Temperatures, pressures, flow rates, constants and units spoken while setting up a problem are listed with timestamps. When your answer is off, check the given you heard.
One chapter per problem set
Thermodynamics, mass balance and plant design each get chapters with titles and start times, so problem eleven is a click away instead of an hour of scrubbing.
Ask how a step was done
Ask the chat where the lecturer set up the energy balance and it answers with the minute. Heavy whiteboard videos go through the upload page.
Why the board photo is not enough
A photo of the whiteboard shows the equations but not the reasoning spoken between them.
✗ Studying from the recording
Problem-solving lectures go fast: the lecturer reads the problem, names the assumptions, sets up the balance and solves. Your photo captures the final board, and the spoken reasons are buried somewhere in a four-hour video.
- Assumptions said aloud and never written
- Given values copied with the wrong unit
- Whole problems rewatched to find one step
- Tagalog explanations English tools miss
- No list of which problems each session solved
- Lecture videos too large for small upload limits
✓ The spoken solution, kept
The full lecture becomes text, with each problem's spoken setup searchable and pinned to its minute. Read the setup of each problem again before you attempt it on your own.
- A brief with the principles taught
- Given values and constants with timestamps
- Chapters per topic and problem set
- Questions the lecture answers, for practice
- A 4.5-hour session covered by the $6 pack
- DOCX to sit next to your solved problems
Sample output
A lecturer setting up a mass balance, in English and Tagalog.
Illustrative only. These lines were composed for this page; they are not from any real lecture, lecturer or review program.
Export
One transcript. Five clean formats.
Every pack exports all five — no format is held back for a higher tier.
Plain text
De-ummed paragraphs. Ready to paste.
SRT captions
Timed to the speech. Every video editor reads this.
WebVTT
HTML5 player + YouTube uploads.
Show notes
Formatted with chapters and pull-quotes.
Machine-readable
Timestamped text for your own tools.
Pricing
Honest pricing, no surprises.
A pack from $6 (500 minutes) opens the full transcript. After that, no subscription and no auto-renew — every tier is a one-time minute pack, and credits never expire. Buy once, use the minutes whenever you need them.
Casual pack
$6/500 min
8 hours of audio — $0.72 an hour. One-time — credits never expire.
- 500 minutes of audio
- All export formats
- Unlimited AI chat per transcript
- Executive summary & key quote
Best value
$12/2,000 min
33 hours of audio — $0.36 an hour. Credits never expire.
- 2,000 minutes of audio
- Priority queue
- All export formats
- Unlimited AI chat per transcript
Bulk pack
$24/5,000 min
83 hours of audio — $0.29 an hour. Credits never expire.
- 5,000 minutes of audio
- Priority queue
- API access for batch pipelines
- All export formats
FAQ
Chemical engineering review lectures, answered.
How long does a 4.5-hour problem session take to come back?
Around 9 minutes, since processing takes about 2 minutes per hour of audio. A short 2-hour problem set returns in about 4.
What does a month of problem sessions cost?
A 4.5-hour lecture uses 270 minutes, so one fits the $6 pack of 500 minutes with 230 to spare. Seven lectures of that length in a month, 1,890 minutes, fit the $12 pack of 2,000 minutes. Eighteen across a season, 4,860 minutes, go on the $24 pack of 5,000 minutes.
Will the lecture video upload, and in what format?
A lecture file may last up to 10 hours or weigh up to 5 GB, whichever comes first. Before your first pack, uploads go up to 2 GB; past that, the file starts once a pack is on the account. If the upload refuses the file, convert it to MP3 first, then send the MP3. Stick to the lectures your review program lets you download.
Will equations on the board be transcribed?
Only what is spoken. The transcript captures what the lecturer says while writing, so an equation read aloud is there and one written in silence is not. Keep your board photos next to the text.
What if the lecturer explains in Bisaya?
English and Tagalog are detected automatically, and lectures that switch between them are handled in one pass. Lecturers who slip into Cebuano or Waray are supported, but those stretches are a fast first draft that needs one review pass.
Which exports are included, and is my file private?
TXT, DOCX, SRT, VTT and JSON, and every one keeps the timestamps. For a study group passing files around: recordings are transcribed on our own servers and are never used for training.
Related
More for engineering review.
Upload the problem session. Rework each step from the text.
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